13076534538 has 80 divisors (see below), whose sum is σ = 31326609600. Its totient is φ = 4062524544.

The previous prime is 13076534531. The next prime is 13076534543. The reversal of 13076534538 is 83543567031.

13076534538 is a `hidden beast` number, since 13 + 0 + 76 + 5 + 34 + 538 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13076534493 and 13076534502.

It is not an unprimeable number, because it can be changed into a prime (13076534531) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 260613 + ... + 306711.

It is an arithmetic number, because the mean of its divisors is an integer number (391582620).

Almost surely, 2^13076534538 is an apocalyptic number.

13076534538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13076534538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15663304800).

13076534538 is an abundant number, since it is smaller than the sum of its proper divisors (18250075062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13076534538 is a wasteful number, since it uses less digits than its factorization.

13076534538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46233 (or 46224 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 13076534538 in words is "thirteen billion, seventy-six million, five hundred thirty-four thousand, five hundred thirty-eight".